Is DE SOTO WATER SUPPLY required to publish a Consumer Confidence Report?

Yes. DE SOTO WATER SUPPLY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is DE SOTO WATER SUPPLY’s next Consumer Confidence Report due?

DE SOTO WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

ADEL, IA · Dallas County

DE SOTO WATER SUPPLY Water System

Consumer Confidence Report status

DE SOTO WATER SUPPLY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 2 items for DE SOTO WATER SUPPLY that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.

System facts

System ID (PWSID): IA2529035
System type: Community Water System
Population served: 960
Service connections: 445
Ownership: local government
Water source: groundwater (wells)

DE SOTO WATER SUPPLY is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 960 people from groundwater.

As of August 1, 2026, its federal record holds 12 entries between 1993 and 2022, of which 2 remain open; none are health-based.

Of the 12, 6 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules, the Consumer Confidence Rule, and the Public Notice Rule and Revised PN Rule.

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
November 8, 2022
Unaddressed
Public Notification Violation for NPDWR Violation
—
Public Notice
November 8, 2022
Unaddressed
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2018 – June 30, 2018
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – March 24, 2017
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
August 1, 2015 – August 31, 2015
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2015 – August 31, 2015
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – December 1, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – July 13, 2013
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Arsenic
July 1, 2001 – June 30, 2002
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 1993 – July 31, 1993
Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
November 8, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
November 8, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
June 1, 2018 – June 30, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2016 – March 24, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
August 1, 2015 – August 31, 2015	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Resolved
August 1, 2015 – August 31, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2014 – December 1, 2014	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2013 – July 13, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
March 1, 2008 – March 31, 2008	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2001 – June 30, 2002	Monitoring, Regular	Arsenic	—	Resolved
July 1, 1993 – July 31, 1993	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

November 1, 2025State Public Notification received1 linked violation
November 1, 2025State Compliance achieved1 linked violation
June 25, 2025State Violation/Reminder Notice1 linked violation
June 25, 2025State Formal Notice of Violation issued1 linked violation
January 21, 2025State Public Notification requested1 linked violation
January 21, 2025State Formal Notice of Violation issued1 linked violation
January 8, 2025State Compliance achieved1 linked violation
January 1, 2025State Compliance achieved1 linked violation
October 9, 2024State Formal Notice of Violation issued1 linked violation
March 20, 2023State Intentional no-action2 linked violations
March 20, 2023State Violation/Reminder Notice1 linked violation
March 20, 2023State Intentional no-action2 linked violations
March 20, 2023State Formal Notice of Violation issued1 linked violation
March 20, 2023State Violation/Reminder Notice2 linked violations
March 20, 2023State Formal Notice of Violation issued1 linked violation
February 1, 2023State Compliance achieved1 linked violation
September 30, 2022State Formal Notice of Violation issued1 linked violation
August 10, 2022State Compliance achieved1 linked violation
August 10, 2022State Compliance achieved1 linked violation
November 4, 2021State Public Notification requested1 linked violation
November 4, 2021State Public Notification requested1 linked violation
November 14, 2018State Compliance achieved2 linked violations
August 5, 2018State Public Notification received1 linked violation
March 24, 2017State Compliance achieved2 linked violations
September 19, 2016State Formal Notice of Violation issued1 linked violation
September 19, 2016State Public Notification requested2 linked violations
June 1, 2016State Public Notification received2 linked violations
June 1, 2016State Compliance achieved2 linked violations
January 19, 2016State Violation/Reminder Notice5 linked violations
January 19, 2016State Intentional no-action4 linked violations
October 2, 2015State Public Notification requested4 linked violations
August 10, 2015State Formal Notice of Violation issued4 linked violations
September 15, 2014State Formal Notice of Violation issued4 linked violations
October 31, 2013State Public Notification requested3 linked violations
July 31, 2002State Compliance achieved2 linked violations
October 25, 1993State Intentional no-action2 linked violations
August 15, 1987State Compliance achieved2 linked violations
August 15, 1987State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 30, 1987State Compliance achieved1 linked violation
January 1, 1987State Formal Notice of Violation issued1 linked violation
January 1, 1987State Intentional no-actiongeneral compliance action — not tied to a specific violation on record
February 18, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
February 16, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Common questions

Is DE SOTO WATER SUPPLY required to publish a Consumer Confidence Report?: Yes. DE SOTO WATER SUPPLY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is DE SOTO WATER SUPPLY’s next Consumer Confidence Report due?: DE SOTO WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DE SOTO WATER SUPPLY have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 2 items for DE SOTO WATER SUPPLY that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

DE SOTO WATER SUPPLY

515-834-2233

ADEL, IA 50003